The registration address of zhengzhou hengchang oil equipment ltd. Is located on the fifth floor of unit 10 of unit 1 of huanco city, located in zhengzhou city, high technology industry development area, no. 68, henan province. The registration authority is the market supervision authority of the zhengzhou city high technology industrial development area, whose representatives operate for the purpose of wear and tearing up oil machinery equipment, mechanical and electrical equipment, production and sale; sale of: gas refuelling machines and accessories, security equipment, hardware, construction materials, photographic equipment, sports equipment, outdoors, daily department goods, office supplies, electronics, oil pumps, spare parts for oil depots; repair and post-sale services for petrol machines; and import and export of goods or technology。